Small edits to soak tests

[NathanielRN]

Description

Follow up to #65, we make some small edits to the Soak Tests:

1. Delete oldest snapshots in the commits/<current_commit_id>/runs/ folder as well as the commits/ folder.
2. With Support repo.repo and repo.owner as template variables JasonEtco/create-an-issue#114 merged, we can use the upstream JasonEtco/create-an-issue action again! (This will be broken until the next minor release)
3. Deleting LOG_STREAM_NAME from the comments because it is not used as an environment variable anymore
4. Change the protocol from grpc:// to http:// to match java and go which only accept http://
5. Update the list of environment variables used for the app during Soak Tests

[willarmiros]

In the long run, e.g. when upstreaming, could we extract all of these tests into an action so that we don't have to update every repo with each change?

[NathanielRN]

In the long run, e.g. when upstreaming, could we extract all of these tests into an action so that we don't have to update every repo with each change?

Totally! That would be an awesome improvement 😄

I think they are well set up to be made into an action. We saw the translation to the rest of the repos go fairly smoothly, so off the top of my head as an action it would need to know the following:

• The commit at which to checkout the current repo
• The location on the current repo for each Sample App to build and Soak Test
• A unique way to identify each Sample App (Usually "platform framework" + "auto/manual instrumentation")
• AWS credentials
• The Process executable name and command line command to identify the process (although maybe we could find this out independently by checking our the diff of actual vs expected processes on a runner)
• Whether to include the otlp metrics receiver (for now while some languages don't have them)

And I just realized we should probably make all the Soak Tests use OTEL_EXPORTER_OTLP_ENDPOINT=http://otel:4317 because some using http://, grpc:// or nothing at all.. I added it to this PR but it's not an urgent fix I would say 😄